10. Using Surface-Seismic Reflection to Profile a Massive Sulfide Deposit at Mount Morgan, Australia

Evans, Brian; Urošević, Milovan; Taube, A.

doi:10.1190/1.9781560802396.ch10

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These surveys were well integrated with petrophysical measurements carried out in boreholes and in the laboratory to constrain the seismic interpretations. Multidisciplinary works for studying large-scale structures hosting mineral deposits also are reported by several authors in Australia (e.g., Goleby et al, 2002;Evans et al, 2003;Williams et al, 2004;Stolz et al, 2004;Urosevic et al, 2005), in Canada (Roy and Clowes, 2000), and in Europe (Juhlin et al, 2002;Korja and Heikkinen, 2005;Malehmir et al, 2006Malehmir et al, , 2007.…”

Section: Introductionmentioning

confidence: 69%

Seismic methods in mineral exploration and mine planning: A general overview of past and present case histories and a look into the future

et al. 2012

View full text Add to dashboard Cite

Due to high metal prices and increased difficulties in finding shallower deposits, the exploration for and exploitation of mineral resources is expected to move to greater depths. Consequently, seismic methods will become a more important tool to help unravel structures hosting mineral deposits at great depth for mine planning and exploration. These methods also can be used with varying degrees of success to directly target mineral deposits at depth. We review important contributions that have been made in developing these techniques for the mining industry with focus on four main regions: Australia, Europe, Canada, and South Africa. A wide range of case studies are covered, including some that are published in the special issue accompanying this article, from surface to borehole seismic methods, as well as petrophysical data and seismic modeling of mineral deposits. At present, high-resolution 2D surveys mostly are performed in mining areas, but there is a general increasing trend in the use of 3D seismic methods, especially in mature mining camps.

show abstract

Section: Introductionmentioning

confidence: 69%

Seismic methods in mineral exploration and mine planning: A general overview of past and present case histories and a look into the future

et al. 2012

View full text Add to dashboard Cite

show abstract

“…However, the main impediment has been the technical difficulties of imaging the geology in hardrock, contorted mineral terranes. Despite these difficulties, a number of surface and underground reflection surveys in the search for mineralization have been reported for Australia (Nelson, 1984;Greenhalgh and Bierbaum, 2000;Evans et al, 2003;Urosevic et al, 2007), Canada (Thurlow et al, 1993;Milkereit et al, 2000;Adam et al, 2000;Calvert et al, 2003;Eaton et al, 2010), Scandinavia (Dahle et al, 1985;Tryggvason et al, 2006;Malehmir et al, 2009;Dehghannejad et al, 2010 ), Africa (Reid et al, 1979;Mutyorata, 1987;Stevenson and Durrheim, 1997;Davison et al, 1999;Pretorious et al, 2003;Gillot et al, 2006;Trickett et al, 2006) and elsewhere (Schmidt, 1959;Gal'perin, 1984;Frappa and Moinier, 1993;Chen et al, 2004). The primary objectives of these studies were to detect ore bodies directly and outline their extent, or to search for an extension to a known deposit.…”

Section: Introductionmentioning

confidence: 99%

Seismic Reflection for Hardrock Mineral Exploration: Lessons from Numerical Modeling

Greenhalgh

Manukyan

2013

JEEG

View full text Add to dashboard Cite

The seismic reflection technique is an essential tool that is extensively applied in hydrocarbon exploration and development, but in hardrock mining and mineral exploration its use has been restricted. Ore bodies present quite elusive targets, in that they are often of limited lateral extent, have steep boundaries and complex shape, lie within high velocity undifferentiated rock and are characterized by small reflection signatures. Additional complications are that they occur at relatively shallow depth and the weak diffracted signals from the mineralization are frequently masked by many overlapping and interfering arrivals, especially mode conversions and reverberations within the weathered surface layer. Conventional CDP (common depth point) reflection profiling and even pre-stack migration reflection approaches do not favor the imaging of such structures.We have undertaken numerical model studies to determine the response of ore bodies and related geological structures (contacts, intrusions) with a view to detection and recognition on actual seismic sections. One type of modeling performed is 3-D acoustic, based on the Kirchhoff integral, to highlight the influence of out-of-plane reflections and the complicated diffraction patterns produced. The other type of modeling is full 2-D finite difference time-domain elastic simulation to not only study the reflection behavior of steeply dipping structures, but also to investigate the influence of mode conversions and to identify the most troublesome forms of noise. It is clear that ore bodies and associated geology present detectable targets, but the high velocity contrast at the base of weathering produces strong surface waves and reverberations which obscure the events of interest. The modeling can help in designing field layouts, which require long apertures and close detector spacing to image steep dips and avoid spatial aliasing problems. The classes of models investigated are quite limited, but the results nevertheless serve to illustrate the difficulties.

show abstract

10. Using Surface-Seismic Reflection to Profile a Massive Sulfide Deposit at Mount Morgan, Australia

Cited by 2 publications

References 0 publications

Seismic methods in mineral exploration and mine planning: A general overview of past and present case histories and a look into the future

Seismic methods in mineral exploration and mine planning: A general overview of past and present case histories and a look into the future

Seismic Reflection for Hardrock Mineral Exploration: Lessons from Numerical Modeling

Contact Info

Product

Resources

About